Fix references to the no-longer-existent misc/ directory in comments, README files, and documentation

configs/olimex-strp711/Kconfig

@@ -1,6 +1,6 @@
 #
 # For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
+# see the file kconfig-language.txt in the NuttX tools repository.
 #
 
 if ARCH_BOARD_OLIMEX_STRP711

configs/olimex-strp711/README.txt

@@ -390,7 +390,7 @@ Common Configuration Notes:
      change a configurations using that tool, you should:
 
      a. Build and install the kconfig-mconf tool.  See nuttx/README.txt
-        and misc/tools/
+        see additional README.txt files in the NuttX tools repository.
 
      b. Execute 'make menuconfig' in nuttx/ in order to start the
         reconfiguration process.

configs/olimex-strp711/nettest/setenv.sh

@@ -64,7 +64,7 @@ fi
 
 # This is the Cygwin path to the location where I build the buildroot
 # toolchain.
-export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
 
 # Add the path to the toolchain to the PATH varialble
 export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"

configs/olimex-strp711/nsh/setenv.sh

@@ -40,7 +40,7 @@ fi
 if [ -z "${PATH_ORIG}" ]; then export PATH_ORIG="${PATH}"; fi
 
 WD=`pwd`
-export BUILDROOT_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+export BUILDROOT_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
 export STR41XSCRIPTS="$WD/configs/olimex-strp711/scripts"
 export PATH="${BUILDROOT_BIN}:${STR41XSCRIPTS}:/sbin:/usr/sbin:${PATH_ORIG}"